Title :
Electrical design of a wideband, high efficiency circularly polarized 4-patches subarray
Author :
Borchi, S. ; Capece, P. ; Di Fausto, M. ; Mazzieri, U. ; Votta, M.
Author_Institution :
Alenia Spazio Spa, Rome, Italy
Abstract :
The design technique and the measured results of a planar circularly polarized subarray composed of four EMC patches are presented. A schematic layout of the four radiating elements is shown. The design and optimization of the feeding network were carried out by using a dedicated software package and experimental results in order to obtain a fine tuning of microstrip dimensions. Good performance in terms of gain and efficiency is shown. With respect to the polarization purity, the axial ratio performance in the frequency band is from 3 dB to 1.4 dB.<>
Keywords :
antenna feeders; electrical engineering computing; microstrip antennas; microwave antenna arrays; microwave measurement; EM coupled subarray; EMC patches; axial ratio performance; dedicated software package; efficiency; electrical design; feeding network; frequency band; gain; measured results; microstrip dimensions; optimization; planar circularly polarized subarray; radiating elements; tuning; wideband antenna; Apertures; Bandwidth; Dielectric constant; Dielectric substrates; Frequency; Impedance; Microstrip; Nonhomogeneous media; Polarization; Wideband;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-0730-5
DOI :
10.1109/APS.1992.221493
